HP 4000/6000/8000 HP 4x00/6x00/8x00 Enterprise Virtual Array Release Notes (XC - Page 7

I/O issue with raw devices and Sun MPxIO multipathing

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Page 7 highlights

• To have an asynchronous data replication with arrays with VCS 3.110, first the DR Group creation must be in synchronous mode and wait for normalization to complete and then the replication mode needs to be changed to asynchronous mode. • Redundancy (Vraid) level for the destination member should be same as the source for XCS 6.240 and VCS 3.110. I/O issue with raw devices and Sun MPxIO multipathing When the EVA is connected to a Sun Solaris host running Sun MPxIO Multipathing, an issue with the MPxIO stack and the emlx driver may affect I/O with raw devices under certain conditions. To avoid this issue, set the load balancing policy to none when using raw device access. Important notes and workarounds 7

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To have an asynchronous data replication with arrays with VCS 3.110, first the DR Group creation
must be in synchronous mode and wait for normalization to complete and then the replication
mode needs to be changed to asynchronous mode.
•
Redundancy (Vraid) level for the destination member should be same as the source for XCS 6.240
and VCS 3.110.
I/O issue with raw devices and Sun MPxIO multipathing
When the EVA is connected to a Sun Solaris host running Sun MPxIO Multipathing, an issue with the
MPxIO stack and the emlx driver may affect I/O with raw devices under certain conditions. To avoid
this issue, set the load balancing policy to none when using raw device access.
Important notes and workarounds
7